Based on your search for flexible, liquid-tight PVC waterproof conduit, I've found a range of products. They fall into two main types: metal-core conduits with a PVC coating and fully non-metallic PVC conduits.
The table below compares the key specifications of these specific products to help you choose:
| Product Name / Source | Type | Key Sizes | Waterproof Rating (IP) | Temperature Range | Key Features & Notes |
|---|---|---|---|---|---|
| VEVOR Non-Metallic Kit-2 | Non-Metallic PVC | 1/2", 3/4", 1" (I.D.) | IP65-2 | -20°C to 60°C-2 | Comes with 5 straight & 5 90° connectors, UV & burial suitable, FT1 flame retardant-2 |
| 20mm Liquid Tight PVC Conduit-1 | PVC-Coated Steel | 20mm | IP67-1 | -20°C to 70°C-1 | Steel core, EN 50086 & EN 61386 compliant, flame retardant-1 |
| Term Tech LT20-10MTR-4 | PVC-Coated Steel | 20mm | IP68 (with fittings)-4 | Not specified | Galvanized steel core, IP68 rating requires specific glands-4 |
| Maxxima Non-Metallic Conduit-8 | Non-Metallic PVC | 3/4" (I.D.) | Liquid Tight (Implied) | -22°F to 176°F (≈ -30°C to 80°C)-8 | UL Listed, smooth interior for easier wire pulling-8 |
???? Key Differences to Consider
When selecting, the core choice is between PVC-Coated Metal and Non-Metallic PVC:
PVC-Coated Metal Conduit: Combines the flexibility of a steel strip with the toughness of a PVC jacket. This type offers superior mechanical protection against crushing, impact, and abrasion, making it ideal for industrial floors, machine tools, or areas with physical hazards-7.
Non-Metallic PVC Conduit: Made entirely of PVC, it is typically more lightweight, flexible, and easier to cut and install without special tools-2. It's highly resistant to corrosion from chemicals, acids, and moisture, making it excellent for outdoor, marine, or washdown environments-2-8.
???? How to Choose the Right One
To make a decision, consider your project's specific needs:
Assess the Physical Environment: Will the conduit be subject to physical crush loads, vibration, or being stepped on? If yes, a metal-core type is likely better. Is it exposed to chemicals, saltwater, or buried directly? If yes, a non-metallic type may be the best choice-2-7.
Check the Required IP Rating: IP ratings indicate protection against solids and liquids. IP65 protects against low-pressure water jets, while IP67 allows temporary immersion, and IP68 permits prolonged immersion-4. Match this to your environment's wetness.
Confirm Local Standards: For permanent electrical installations, verify that the product carries the necessary certifications for your region (e.g., UL listing in the US-8, CE/EN marks in Europe-1).
Plan for Fittings: A proper liquid-tight seal depends on the right connectors and glands. Some kits include them-2, while for others you must purchase them separately https://store.unigulfsupply.com/product/flexible-liquid-tight-conduit-20mm-50m/